Remove SlotIndex::PHI_BIT. It is no longer used by anything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114779 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 2726fc3..d30596a 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -393,8 +393,7 @@
       // Create interval with one of a NEW value number.  Note that this value
       // number isn't actually defined by an instruction, weird huh? :)
       if (PHIJoin) {
-        ValNo = interval.getNextValue(SlotIndex(Start, true), 0, false,
-                                      VNInfoAllocator);
+        ValNo = interval.getNextValue(Start, 0, false, VNInfoAllocator);
         ValNo->setIsPHIDef(true);
       }
       LiveRange LR(Start, killIdx, ValNo);
@@ -673,8 +672,7 @@
   }
 
   VNInfo *vni =
-    interval.getNextValue(SlotIndex(getMBBStartIdx(MBB), true),
-                          0, false, VNInfoAllocator);
+    interval.getNextValue(getMBBStartIdx(MBB), 0, false, VNInfoAllocator);
   vni->setIsPHIDef(true);
   LiveRange LR(start, end, vni);
 
diff --git a/lib/CodeGen/SlotIndexes.cpp b/lib/CodeGen/SlotIndexes.cpp
index 4d362d5..b106d3a 100644
--- a/lib/CodeGen/SlotIndexes.cpp
+++ b/lib/CodeGen/SlotIndexes.cpp
@@ -199,11 +199,7 @@
 
 // Print a SlotIndex to a raw_ostream.
 void SlotIndex::print(raw_ostream &os) const {
-  os << entry().getIndex();
-  if (isPHI())
-    os << "*";
-  else
-    os << "LudS"[getSlot()];
+  os << entry().getIndex() << "LudS"[getSlot()];
 }
 
 // Dump a SlotIndex to stderr.
diff --git a/lib/CodeGen/Splitter.cpp b/lib/CodeGen/Splitter.cpp
index 38f3b1f..1cb2f62 100644
--- a/lib/CodeGen/Splitter.cpp
+++ b/lib/CodeGen/Splitter.cpp
@@ -178,8 +178,7 @@
         li.removeRange(ls.lis->getMBBStartIdx(outBlock), copyDefIdx);
 
         VNInfo *newVal =
-          getNewLI()->getNextValue(SlotIndex(ls.lis->getMBBStartIdx(outBlock),
-                                             true),
+          getNewLI()->getNextValue(ls.lis->getMBBStartIdx(outBlock),
                                    0, false, ls.lis->getVNInfoAllocator());
 
         getNewLI()->addRange(LiveRange(ls.lis->getMBBStartIdx(outBlock),